<template>
  <div>
    <div style="margin: 10px 0">
      <label for="username" class="search-label">用户名</label>
      <el-input
        id="username"
        style="width: 200px"
        placeholder="请输入名称"
        suffix-icon="el-icon-search"
        v-model="username"
      ></el-input>
      <label for="email" class="search-label">邮箱</label>
      <el-input
        id="email"
        style="width: 200px"
        placeholder="请输入邮箱"
        suffix-icon="el-icon-message"
        class="ml-5"
        v-model="email"
      ></el-input>
      <label for="address" class="search-label">地址</label>
      <el-input
        id="address"
        style="width: 200px"
        placeholder="请输入地址"
        suffix-icon="el-icon-position"
        class="ml-5"
        v-model="address"
      ></el-input>
      <el-button
        type="primary"
        icon="el-icon-search"
        @click="load"
        style="margin-left: 10px"
        >搜索</el-button
      >
      <el-button icon="el-icon-refresh" @click="reset">重置</el-button>
    </div>

    <div style="margin: 10px 0">
      <el-button type="primary" plain icon="el-icon-plus" size="mini" @click="handleAdd"
        >新增</el-button
      >

      <el-popconfirm
        class="ml-5"
        confirm-button-text="确定"
        cancel-button-text="我再想想"
        icon="el-icon-info"
        icon-color="red"
        title="您确定批量删除这些数据吗？"
        @confirm="delBatch"
      >
        <el-button type="danger" slot="reference" plain icon="el-icon-delete" size="mini"
          >批量删除</el-button
        >
        <!-- <el-button type="danger" slot="reference">批量删除 <i class="el-icon-remove-outline"></i></el-button> -->
      </el-popconfirm>
      <el-upload
        :action="'http://' + serverIp + ':9090/user/import'"
        :show-file-list="false"
        accept="xlsx"
        :on-success="handleExcelImportSuccess"
        style="display: inline-block"
      >
        <el-button type="success" class="ml-5" plain icon="el-icon-bottom"
          >导入</el-button
        >
      </el-upload>
      <el-button type="warning" @click="exp" class="ml-5" plain icon="el-icon-top"
        >导出</el-button
      >
    </div>

    <el-table :data="tableData" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center"></el-table-column>
      <el-table-column prop="id" label="ID" width="80" align="center"></el-table-column>
      <el-table-column
        prop="username"
        label="用户名"
        width="140"
        align="center"
      ></el-table-column>
      <el-table-column prop="role" label="角色" align="center">
        <template slot-scope="scope">
          <el-tag type="danger" v-if="scope.row.roleName === '超级管理员'"
            >超级管理员</el-tag
          >
          <el-tag type="primary" v-else-if="scope.row.roleName === '管理员'"
            >管理员</el-tag
          >
          <span v-else-if="scope.row.roleName == null"></span>
          <el-tag type="success" v-else>{{ scope.row.roleName }}</el-tag>
        </template>
      </el-table-column>
      <el-table-column
        prop="nickname"
        label="昵称"
        width="120"
        align="center"
      ></el-table-column>
      <el-table-column prop="email" label="邮箱" align="center"></el-table-column>
      <el-table-column prop="phone" label="电话" align="center"></el-table-column>
      <el-table-column prop="address" label="地址" align="center"></el-table-column>
      <el-table-column label="操作" width="500" align="center">
        <template slot-scope="scope">
          <!-- <el-button type="primary" @click="lookCourse(scope.row.courses)" v-if="scope.row.role === 'ROLE_TEACHER'">查看教授课程 <i class="el-icon-document"></i></el-button>
          <el-button type="warning" @click="lookStuCourse(scope.row.stuCourses)" v-if="scope.row.role === 'ROLE_STUDENT'">查看已选课程 <i class="el-icon-document"></i></el-button> -->
          <el-button
            type="success"
            icon="el-icon-edit"
            plain
            @click="handleEdit(scope.row)"
            >编辑</el-button
          >&nbsp;&nbsp;&nbsp;
          <el-popconfirm
            class="ml-5"
            confirm-button-text="确定"
            cancel-button-text="我再想想"
            icon="el-icon-info"
            icon-color="red"
            title="您确定删除吗？"
            @confirm="del(scope.row.id)"
          >
            <el-button type="danger" icon="el-icon-delete" plain slot="reference"
              >删除</el-button
            >
          </el-popconfirm>
        </template>
      </el-table-column>
    </el-table>
    <div style="padding: 10px 0">
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="pageNum"
        :page-sizes="[2, 5, 10, 20]"
        :page-size="pageSize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
        background
      >
      </el-pagination>
    </div>

    <el-dialog title="用户信息" :visible.sync="dialogFormVisible" width="30%">
      <el-form ref="form" :model="form" label-width="80px" size="small" :rules="rules">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="form.username" autocomplete="off"></el-input>
        </el-form-item>
        <el-form-item label="角色">
          <el-select
            clearable
            v-model="form.roleId"
            placeholder="请选择角色"
            style="width: 100%"
          >
            <el-option
              v-for="item in roles"
              :key="item.name"
              :label="item.name"
              :value="item.id"
            ></el-option>
          </el-select>
        </el-form-item>
        <el-form-item label="昵称">
          <el-input v-model="form.nickname" autocomplete="off"></el-input>
        </el-form-item>
        <el-form-item label="邮箱">
          <el-input v-model="form.email" autocomplete="off"></el-input>
        </el-form-item>
        <el-form-item label="电话">
          <el-input v-model="form.phone" autocomplete="off"></el-input>
        </el-form-item>
        <el-form-item label="地址">
          <el-input v-model="form.address" autocomplete="off"></el-input>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button @click="dialogFormVisible = false">取 消</el-button>
        <el-button type="primary" @click="save">确 定</el-button>
      </div>
    </el-dialog>

    <el-dialog title="课程信息" :visible.sync="vis" width="30%">
      <el-table :data="courses" border stripe>
        <el-table-column prop="name" label="课程名称"></el-table-column>
        <el-table-column prop="score" label="学分"></el-table-column>
      </el-table>
    </el-dialog>

    <el-dialog title="课程信息" :visible.sync="stuVis" width="30%">
      <el-table :data="stuCourses" border stripe>
        <el-table-column prop="name" label="课程名称"></el-table-column>
        <el-table-column prop="score" label="学分"></el-table-column>
      </el-table>
    </el-dialog>
  </div>
</template>

<script>
import { serverIp } from "../../public/config";

export default {
  name: "User",
  data() {
    return {
      rules: {
        username: [{ required: true, message: "用户名称不能为空", trigger: "blur" }],
      },
      serverIp: serverIp,
      tableData: [],
      total: 0,
      pageNum: 1,
      pageSize: 10,
      username: "",
      email: "",
      address: "",
      form: {},
      dialogFormVisible: false,
      multipleSelection: [],
      roles: [],
      courses: [],
      vis: false,
      stuCourses: [],
      stuVis: false,
    };
  },
  created() {
    this.load();
  },
  methods: {
    // lookCourse(courses) {
    //   this.courses = courses
    //   this.vis = true
    // },
    // lookStuCourse(stuCourses) {
    //   this.stuCourses = stuCourses
    //   this.stuVis = true
    // },
    load() {
      this.request
        .get("/user/page", {
          params: {
            pageNum: this.pageNum,
            pageSize: this.pageSize,
            username: this.username,
            email: this.email,
            address: this.address,
          },
        })
        .then((res) => {
          this.tableData = res.data.records;
          this.total = res.data.total;
        });

      this.request.get("/role").then((res) => {
        this.roles = res.data;
      });
    },
    save() {
      this.$refs["form"].validate((valid) => {
        if (valid) {
          this.request.post("/user", this.form).then((res) => {
            if (res.code === "200") {
              this.$message.success("保存成功");
              this.dialogFormVisible = false;
              this.load();
            } else {
              this.$message.error("保存失败");
            }
          });
        }
      });
    },
    handleAdd() {
      this.dialogFormVisible = true;
      this.form = {};
    },
    handleEdit(row) {
      this.form = JSON.parse(JSON.stringify(row));
      this.dialogFormVisible = true;
    },
    del(id) {
      this.request.delete("/user/" + id).then((res) => {
        if (res.code === "200") {
          this.$message.success("删除成功");
          this.load();
        } else {
          this.$message.error("删除失败");
        }
      });
    },
    handleSelectionChange(val) {
      console.log(val);
      this.multipleSelection = val;
    },
    delBatch() {
      let ids = this.multipleSelection.map((v) => v.id); // [{}, {}, {}] => [1,2,3]
      this.request.post("/user/del/batch", ids).then((res) => {
        if (res.code === "200") {
          this.$message.success("批量删除成功");
          this.load();
        } else {
          this.$message.error("批量删除失败");
        }
      });
    },
    reset() {
      this.username = "";
      this.email = "";
      this.address = "";
      this.load();
    },
    handleSizeChange(pageSize) {
      console.log(pageSize);
      this.pageSize = pageSize;
      this.load();
    },
    handleCurrentChange(pageNum) {
      console.log(pageNum);
      this.pageNum = pageNum;
      this.load();
    },
    exp() {
      window.open(`http://${serverIp}:9090/user/export`);
    },
    handleExcelImportSuccess() {
      this.$message.success("导入成功");
      this.load();
    },
  },
};
</script>

<style>
.headerBg {
  background: #eee !important;
}
.search-label {
  font-size: 14px;
  color: #606266;
  margin-right: 7px;
  margin-left: 10px;
}
</style>
